Home / 14,137.66-21,173.68-13,645.60

Finding the Fourth Proportional to 14,137.66, 21,173.68 and 13,645.60

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Solution

The fourth proportional to 14,137.66, 21,173.68 and 13,645.60 is: 20,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.66 : 21,173.68 = 13,645.60 : x
  2. Step 2: Convert to fraction form
    14,137.66/21,173.68 = 13,645.60/x
  3. Step 3: Cross multiply
    14,137.66x = 21,173.68 × 13,645.60
  4. Step 4: Simplify right side
    14,137.66x = 288,927,567.81
  5. Step 5: Solve for x
    x = 288,927,567.81/14,137.66
  6. Step 6: Final answer
    x = 20,436.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.